2018 GMC YUKON XL ignition

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
124 Instruments and Controls OFF : Turns the windshield
wipers off.
8 : For a single wipe, turn to
8 ,
then release. For several wipes,
hold the band on
8 longer.
Clear ice and snow from the wiper
blades before using them. If frozen
to the windshield, carefully loosen or
thaw them. Damaged wiper blades
should be replaced. See Wiper
Blade Replacement 0 303 .
Heavy snow or ice can overload the
wiper motor. An internal circuit
breaker to the motor will stop the
motor until it cools down.
Wiper Parking
If the ignition is turned off while the
wipers are on
w ,
1 , or
3 INT,
they will immediately stop.
If
z FRONT is then moved to
OFF before the driver door is
opened or within 10 minutes, the
wipers will restart and move to the
base of the windshield. If the ignition is turned off while the
wipers are performing wipes due to
windshield washing or Rainsense,
the wipers continue to run until they
reach the base of the windshield.
Rainsense With Rainsense, a sensor near the
top center of the windshield detects
the amount of water on the
windshield and controls the
frequency of the windshield wiper.
Keep this area of the windshield
clear of debris to allow for best
system performance.
3 INT : Turn the
z FRONT
band on the wiper lever to adjust the
sensitivity when Rainsense is
turned on.
.
Turn the band up for more
sensitivity to moisture. .
Turn the band down to lower INT
setting for less sensitivity to
moisture.
Move the band out of the
3 INT
position to deactivate Rainsense.
z AUTO : Press to turn
Rainsense on or off. When turned
on and
z FRONT is in one of the
Rainsense wipe sensitivity positions
the wipers can be adjusted for more
or less sensitivity to moisture. When
turned off, the wipers operate as
timed intermittent wipers and can be
adjusted for more or less frequent
wipes.
If
z AUTO is turned on when the
ignition is turned on, or if the ignition
is in on and the
z FRONT band
is in one of the sensitivity settings

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Instruments and Controls 125when
z AUTO is turned on or off,
a message may display indicating if
Rainsense was turned on or off.
If the ignition is in on and
zFRONT is not in one of the
sensitivity settings when
z AUTO
is turned on, a message may
display indicating that the wiper
band must be in one of the
sensitivity settings for Rainsense to
operate.
Wiper Arm Assembly Protection
When using an automatic car wash,
move the windshield wiper lever to
OFF. This disables the automatic
Rainsense windshield wipers.
With Rainsense, if the transmission
is in N (Neutral) and the vehicle
speed is very slow, the wipers will
automatically stop at the base of the
windshield.
The wiper operations return to
normal when the transmission is no
longer in N (Neutral) or the vehicle
speed has increased. Windshield Washer
{ WarningIn freezing weather, do not use
the washer until the windshield is
warmed. Otherwise the washer
fluid can form ice on the
windshield, blocking your vision.
L m : Push the paddle marked with
the windshield washer symbol at the
top of the turn signal lever to spray
washer fluid and activate the wipers.
The wipers will continue until the
paddle is released or the maximum
wash time is reached. When the
paddle is released, additional wipes
may occur depending on how long
the windshield washer had been
activated. See Washer Fluid 0 296
for information on filling the
windshield washer fluid reservoir. Rear Window Wiper/
Washer
The rear wiper control is on the turn
signal lever.
To turn the rear wiper on, slide the
lever to a wiper position.
OFF : Turns the wiper off.
INT : Turns on the rear wiper with a
delay between wipes.
ON : Turns on the rear wiper.
= REAR : Press this button on the
end of the lever to spray washer
fluid on the rear window. The wipers
will clear the rear window and either
stop or return to your preset speed.
For more washer cycles, press and
hold the button.
The rear window wiper/washer will
not operate if the liftgate or liftglass
is open or ajar. If the liftgate or

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
128 Instruments and Controls .
One in the third row seat on the
driver side
.
One in the rear cargo area on
the passenger side
Vehicles with Bench Seats
.
One on the center stack below
the climate control system
.
One in the storage area on the
bench seat
.
One on the rear of the center
armrest storage
.
One in the third row seat area on
the driver side
.
One in the rear cargo area on
the passenger side
Lift the cover to access and replace
when not in use.
The accessory power outlets are
powered as follows:
.
The power outlet near the
cupholders for vehicles with a
center console or on the center
stack for vehicles with bench
seats, can be configured to
operate using Retained
Accessory Power (RAP) or battery power modes. If these
power outlets are used while in
the battery power mode, this
could cause interference
between the Remote Keyless
Entry (RKE) transmitter and the
vehicle, and the vehicle may not
start.
See Ignition Positions (Key
Access) 0 207 or Ignition
Positions (Keyless Access)
0 205 .
.
The power outlets in the third
row seat area or in the rear
cargo area are powered at all
times. The power outlets inside
the storage area, on the rear of
the console, or on the bench
seat are only powered when the
ignition is on or in ACC/
ACCESSORY, or when RAP is
active.
{ Warning
Power is always supplied to the
outlet, if configured accordingly.
Do not leave electrical equipment
(Continued) Warning (Continued) plugged in when the vehicle is not
in use because the vehicle could
catch fire and cause injury or
death.
CautionLeaving electrical equipment
plugged in for an extended period
of time while the ignition is off will
drain the battery. Always unplug
electrical equipment when not in
use and do not plug in equipment
that exceeds the maximum
15 amp rating.
Certain power accessory plugs may
not be compatible with the
accessory power outlet and could
overload vehicle or adapter fuses.
If a problem is experienced, see
your dealer.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Instruments and Controls 129When adding electrical equipment,
be sure to follow the proper
installation instructions included with
the equipment. See Add-On
Electrical Equipment 0 274 .
CautionHanging heavy equipment from
the power outlet can cause
damage not covered by the
vehicle warranty. The power
outlets are designed for
accessory power plugs only, such
as cell phone charge cords.
Power Outlet 110/120-Volt
Alternating Current If equipped with this power outlet, it
can be used to plug in electrical
equipment that uses a maximum
limit of 150 watts.
For vehicles with a center console,
the 110/120-volt power outlet is on
the rear of the center console. For vehicles with bench seats, the
110/120-volt power outlet is on the
center stack below the climate
controls.
An indicator light on the outlet turns
on to show it is in use. The light
comes on when the ignition is on,
equipment requiring less than 150
watts is plugged into the outlet, and
no system fault is detected.
The indicator light does not come on
when the ignition is off or if the
equipment is not fully seated into
the outlet.
If equipment is connected using
more than 150 watts or a system
fault is detected, a protection circuit
shuts off the power supply and the
indicator light turns off. To reset the
circuit, unplug the item and plug it
back in or turn the ignition off and
then back to on. The power restarts
when equipment using 150 watts or
less is plugged into the outlet and a
system fault is not detected. The power outlet is not designed for
the following, and may not work
properly if they are plugged in:
.
Equipment with high initial peak
wattage, such as
compressor-driven refrigerators
and electric power tools
.
Other equipment requiring an
extremely stable power supply,
such as
microcomputer-controlled
electric blankets and touch
sensor lamps
.
Medical equipment
Wireless Charging The vehicle may have wireless
charging on top of the center
console. See Center Console
Storage 0 120 . The system
operates at 145 kHz and wirelessly
charges one PMA or Qi compatible
mobile device. The power output of
the system is capable of charging at
a rate up to 1 amp (5W), as
requested by the compatible mobile
device. See Radio Frequency
Statement 0 396 .

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Instruments and Controls 137
Fuel Gauge
English Standard Theme Shown,
Metric Similar
When the ignition is on, the fuel
gauge indicates about how much
fuel is left in the tank.
There is an arrow near the fuel
gauge pointing to the side of the
vehicle the fuel door is on.
When the indicator nears empty, the
low fuel light comes on. There still is
a little fuel left, but the vehicle
should be refueled soon. Here are four things that some
owners ask about. None of these
show a problem with the fuel gauge:
.
At the service station, the fuel
pump shuts off before the gauge
reads full.
.
It takes a little more or less fuel
to fill up than the gauge
indicated. For example, the
gauge may have indicated the
tank was half full, but it actually
took a little more or less than
half the tank's capacity to fill
the tank.
.
The gauge moves a little while
turning a corner or speeding up.
.
The gauge takes a few seconds
to stabilize after the ignition is
turned on, and goes back to
empty when the ignition is
turned off. Engine Oil Pressure
Gauge
Metric Standard Theme

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
140 Instruments and Controls CautionDo not drive the vehicle while the
transmission fluid is overheating,
or the transmission can be
damaged. This could lead to
costly repairs that would not be
covered by the warranty.
Voltmeter Gauge
Standard Theme
When the ignition is on, this gauge
indicates the battery voltage. When the engine is running, this
gauge shows the condition of the
charging system. The gauge can
transition from a higher to lower or a
lower to higher reading. This is
normal. If the vehicle is operating
outside the normal operating range,
the charging system light comes on.
See Charging System Light 0 142
for more information. The voltmeter
gauge may also read lower when in
fuel economy mode. This is normal.
Readings outside the normal
operating range can also occur
when a large number of electrical
accessories are operating in the
vehicle and the engine is left idling
for an extended period. This
condition is normal since the
charging system is not able to
provide full power at engine idle. As
engine speeds are increased, this
condition should correct itself as
higher engine speeds allow the
charging system to create maximum
power.
The vehicle can only be driven for a
short time with the readings outside
the normal operating range. If the
vehicle must be driven, turn off all accessories, such as the radio and
air conditioner and unplug all
chargers and accessories.
Readings outside the normal
operating range indicate a possible
problem in the electrical system.
Have the vehicle serviced as soon
as possible.
Seat Belt Reminders Driver Seat Belt Reminder
Light There is a driver seat belt reminder
light on the instrument cluster.
When the vehicle is started, this
light flashes and a chime may come
on to remind the driver to fasten
their seat belt. Then the light stays
on solid until the belt is buckled.
This cycle may continue several

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
142 Instruments and Controls
Passenger Airbag Status
Indicator The vehicle has a passenger
sensing system. See Passenger
Sensing System 0 91 for important
safety information. The passenger
airbag status indicator is in the
overhead console.
United States
Canada and Mexico
When the vehicle is started, the
passenger airbag status indicator
will light ON and OFF, or the
symbols for on and off, for several
seconds as a system check. Then, after several more seconds, the
status indicator will light either ON
or OFF, or the on or off symbol, to
let you know the status of the front
outboard passenger frontal airbag.
If the word ON or the on symbol is
lit on the passenger airbag status
indicator, it means that the front
outboard passenger frontal airbag is
allowed to inflate.
If the word OFF or the off symbol is
lit on the airbag status indicator, it
means that the passenger sensing
system has turned off the front
outboard passenger frontal airbag.
If, after several seconds, both status
indicator lights remain on, or if there
are no lights at all, there may be a
problem with the lights or the
passenger sensing system. See
your dealer for service.
{ Warning
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
(Continued) Warning (Continued) with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. See Airbag Readiness
Light 0 141 for more information,
including important safety
information.
Charging System Light
The charging system light comes on
briefly when the ignition is turned
on, but the engine is not running, as
a check to show the light is working.
It should go out when the engine is
started.
If the light stays on, or comes on
while driving, there may be a
problem with the electrical charging

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Instruments and Controls 143system. Have it checked by your
dealer. Driving while this light is on
could drain the battery.
When this light comes on, or is
flashing, the Driver Information
Center (DIC) also displays a
message.
If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.
Malfunction Indicator
Lamp (Check Engine
Light) This light is part of the vehicle ’ s
emission control on-board
diagnostic system. If this light is on
while the engine is running, a
malfunction has been detected and
the vehicle may require service. The
light should come on to show that it
is working when the ignition is in
Service Mode.
See Ignition Positions (Key Access)
0 207 or Ignition Positions (Keyless
Access) 0 205 . Malfunctions are often indicated by
the system before any problem is
noticeable. Being aware of the light
and seeking service promptly when
it comes on may prevent damage.
CautionIf the vehicle is driven continually
with this light on, the emission
control system may not work as
well, the fuel economy may be
lower, and the vehicle may not
run smoothly. This could lead to
costly repairs that might not be
covered by the vehicle warranty. CautionModifications to the engine,
transmission, exhaust, intake,
or fuel system, or the use of
replacement tires that do not
meet the original tire
specifications, can cause this light
to come on. This could lead to
costly repairs not covered by the
vehicle warranty. This could also
affect the vehicle ’ s ability to pass
an Emissions Inspection/
Maintenance test. See
Accessories and Modifications
0 278 .
If the light is flashing : A
malfunction has been detected that
could damage the emission control
system and increase vehicle
emissions. Diagnosis and service
may be required.
To help prevent damage, reduce
vehicle speed and avoid hard
accelerations and uphill grades.